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SKU: 3143-12
GSC P-D Nissan VR38DETT 6.6mm Stem Manganese Bronze Exhaust Valve Guide Stopper Style - Set of 12 2009-2024 GT-R
GSC Power-Division exhaust valve guides deliver precise valve stem control for Nissan VR38DETT engines in 2009-2024 R35 GT-R models. Crafted from manganese bronze these stopper-style guides ensure minimal wear and consistent sealing under extreme boost and RPM. This set of 12 covers all exhaust valves for complete engine rebuilds or upgrades.
Key Features
- Manganese Bronze Material: Provides excellent corrosion resistance and longevity in high-heat exhaust environments
- 6.6mm Stem Fit: Matches upgraded aftermarket exhaust valves for seamless integration in performance VR38DETT builds
- Stopper Style Design: Locks guides securely in cylinder head preventing movement during aggressive valvetrain operation
- Precision Tolerances: Factory-machined to OEM specs ensuring straight valve paths and reduced oil consumption
- Complete Set of 12: Equips one full V6 engine with exhaust-side guides ready for professional installation
Product Notes
- Inspect cylinder head valve guide bores before installation for proper sizing
- Lubricate guides with assembly lube during install to prevent scoring
- Store in original packaging away from moisture until use
Installation Notes
- Professional installation recommended.
- Ream valve guide bores to 6.602-6.607mm ID for press-fit
- Compatible with standard GSC valve seals and springs
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2009-2024 | Nissan | GT-R | Base |
| 2009-2024 | Nissan | GT-R | Premium |
| 2009-2024 | Nissan | GT-R | NISMO |
| 2017-2024 | Nissan | GT-R | Track Edition |
| 2020-2024 | Nissan | GT-R | T-spec |
Why Choose GSC Power-Division?
- Trusted by GT-R racers for valvetrain components in drag and circuit applications
- Engineered with input from professional Nissan tuners for real-world durability
- Made in USA with tight tolerances for repeatable performance results
Frequently Asked Questions
-
Q: Will these fit stock GT-R heads with oversized valves?
A: Yes designed for 6.6mm stem aftermarket exhaust valves in stock or ported VR38DETT heads -
Q: What material makes these guides heat-resistant?
A: Manganese bronze alloy withstands exhaust gas temperatures over 1500°F without galling -
Q: Is a warranty included?
A: GSC offers limited lifetime warranty against manufacturing defects with proof of proper installation
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Foam-protected box 6 x 4 x 2 inches
- Weight: 0.65 lbs
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